A number of complicated scenarios exist for each team to clinch a postseason spot with a win this week.

While the Broncos (9-2) might be feeling the majority of the disappointment after matching a franchise-record 24-point collapse Sunday in New England, the Chiefs (9-2) are likely feeling the brunt of the pressure.

They've dropped their first two games in consecutive weeks, including their first at home in Sunday's last-minute 41-38 loss to San Diego. They've also lost consecutive games at Arrowhead Stadium to the Broncos.

The more alarming trend might be a defense that has allowed season-high point totals the last two weeks. After allowing over 17 points for the first time this season in a 27-17 loss Nov. 17 at Denver that didn't exactly raise huge concerns, Sunday's game certainly exposed some holes -- and physically created them with injuries.

"Just like we were doing when we were winning, we need to go back and see what's up and correct it and just keep going to work," Chiefs safety
Eric Berry said. "It's not the end of the world. But we do have a sense of urgency this week to get the things corrected that we see on tape."

Kansas City has two sacks in its last four games after piling up 35 through its first seven.
Peyton Manning and
Philip Rivers combined for 715 passing yards in two weeks after the Chiefs had held each of their previous nine opponents under 300 yards through the air.

They now face Manning again, and this time around
Tamba Hali (9.0) and
Justin Houston (11.0), who account for over half of the team's sacks, are going to be at best banged up.

Hali suffered a sprained ankle last week, though he said before practice Wednesday he plans to play. Houston's partially dislocated elbow has forced him into a sling and will likely keep him out of Sunday's game.

"Losing that caliber of players, we have to step it up, make something happen," Chiefs cornerback
Brandon Flowers said. "That's what we get paid to do."

Coach Andy Reid said starting defensive tackle
Mike DeVito will likely return after missing last week's game with a knee injury.

The Chiefs are still best in the AFC in scoring defense, allowing 16.3 points per game. They're also holding opponents to an NFL-low 29.1 percent on third down.

The Broncos offense, however, has been another kind of elite, averaging a league-best 451.5 yards and 39.0 points, 11.2 points ahead of No. 2 Seattle. Their 48.3 percent third-down conversion rate tops the league, as does their red-zone efficiency (78.7).

Manning is within two touchdown passes of breaking his franchise record of 37. Tying that mark Sunday likely would have helped avoid a 34-31 overtime loss to the
Patriots.

He finished with a season-worst 70.4 passer rating with a season-low 19 completions on 36 attempts for a season-low 150 yards.

Matching a season-high four turnovers as a team was likely the bigger issue.

"Hated the way that ended, not getting a chance to get our hands on the ball," Manning said. "We helped them with some short fields. It's hard to do that to our defense."

That hasn't been an issue for Chiefs quarterback
Alex Smith or the team as a whole. They've turned the ball over a league-low 11 times while creating an AFC-best 24 takeaways.

Smith has thrown five interceptions, and his 25 picks since 2010 are the fewest among quarterbacks with 1,100 passing attempts.

The Broncos aren't without injury issues of their own.

Knowshon Moreno ran for a career-best 224 yards on a career-high 37 carries against the Patriots. Though he isn't certain to play, an MRI showed a right ankle injury suffered at the end of the game caused no significant damage.

Del Rio said he expects cornerback
Champ Bailey (foot) and tight end
Julius Thomas (knee) to return after both missed the New England. Julius Thomas is tied with
Demaryius Thomas for the team lead with 10 touchdown catches.

Starting defensive tackle
Kevin Vickerson, however, has been placed on season-ending injured reserve with a dislocated hip.